With a brief analysis on one of Louis I Kahn\' s masterpieces in his late career——Fort Wayne Fine Art Center,this article intends to illustrate the process of uniting of Kahn\' s Ideal Assembly Building and explain its technical operability as well as its impact on urban space.

Under the circumstances, ahead of the architects lay a large number of design projects that are no longer a single building as usual, but have a tendency towards building cluster, which the author defines as“project of Group Architecture in mountainous areas”(hereinafter referred to as the project) in this thesis.

The author introduces the group architecture,summarizes the advantages and the characteristics of the group architecture,carries out the diversity study of the group architecture through the analysis of No.